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authorJohn Fastabend <john.fastabend@gmail.com>2017-07-17 09:27:07 -0700
committerDavid S. Miller <davem@davemloft.net>2017-07-17 09:48:05 -0700
commit814abfabef3ceed390c10d06a0cc69a86454b6cf (patch)
treefe6ae9f9007124e1ddd76efd152f5d60db0a5bd9 /samples
parentd445516966dcb2924741b13b27738b54df2af01a (diff)
downloadlinux-814abfabef3ceed390c10d06a0cc69a86454b6cf.tar.bz2
xdp: add bpf_redirect helper function
This adds support for a bpf_redirect helper function to the XDP infrastructure. For now this only supports redirecting to the egress path of a port. In order to support drivers handling a xdp_buff natively this patches uses a new ndo operation ndo_xdp_xmit() that takes pushes a xdp_buff to the specified device. If the program specifies either (a) an unknown device or (b) a device that does not support the operation a BPF warning is thrown and the XDP_ABORTED error code is returned. Signed-off-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'samples')
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